Eat to your heart's content
With heart disease the number one killer of both men and women in this country, you would think a cure that could dramatically reduce these deaths would be big news. And yet the most effective remedy is so simple that most people can't seem to believe it works. "In traditional societies, where people don't eat processed foods, heart disease is rare," says cardiologist Arthur Agatston, MD, author of The South Beach Wake-Up Call. "If you start with a healthy diet in childhood, heart attacks are almost completely preventable."
In fact, according to new research published in Circulation, people who eat a diet rich in fruits, vegetables, and fish lower their risk of dying from a heart attack or stroke by 35%. Researchers tracked the eating habits of 31,546 people with a history of heart disease, stroke, or type 2 diabetes over five years, and found that those who ate the heart-healthy diet had the lowest chances of having a repeat stroke or heart attack. What’s more, the healthy eaters were 28% less likely to develop congestive heart failure.
But even if you've downed a small army's worth of french fries, cleaning up your diet as an adult can still have a profound effect. Studies have shown that up to 70% of heart disease can be averted with the right regimen, according to Walter Willett, MD, chair of nutrition at Harvard School of Public Health. But is diet alone as powerful as drugs? "Oh, no, it's much more powerful," says Dr. Willett. "Statins, the most effective single medications for reducing heart disease, only cut risk by 25 to 30%.
You would need a cabinet full of prescription drugs to bestow all the benefits of a serious heart-healthy meal plan. There's nothing a drug can do that foods can't do too—lower our blood pressure (like ACE inhibitors), slash "bad" LDL cholesterol (like statins), reduce harmful triglycerides (like fibrates), raise "good" HDL (like niacin tablets), and prevent the unwanted clotting that causes heart attacks and strokes (like aspirin).
Diet can be so effective that the British Medical Journal published a paper suggesting that doctors shelve the idea of developing a combination drug with multiple heart meds in it—the Polypill, as it's come to be known. Instead they recommended a Polymeal—a "tastier and safer alternative" that would include wine, fish, dark chocolate, garlic, almonds, and heaping servings of fruits and vegetables. "But the longer you wait, the more likely you'll need drugs," warns Dr. Agatston.
In that spirit, here are nine top foods for the heart. But this list is only a beginning. A truly healthy diet features a broad range of fruits, vegetables, nuts, and legumes—not a select few. So while you're shopping for kale, don't neglect Swiss chard, arugula, spinach, and romaine. An orange is great, but so are strawberries, apples, bananas, and kiwifruit. Hippocrates understood the concept more than 2,000 years ago: "Let your food be your medicine, and your medicine be your food."
Published January 2012, Prevention
Oranges
Rx Effect: Reduce blood pressure, cholesterol, and heart failure
The Evidence: Oranges contain a pharmacy's worth of salves for the heart. The soluble fiber pectin acts like a giant sponge, sopping up cholesterol in food and blocking its absorption—just like a class of drugs known as bile acid sequestrants. And the potassium in oranges helps counterbalance salt, keeping blood pressure under control. But new research shows something even more startling: Citrus pectin helps neutralize a protein called galectin-3 that causes scarring of heart tissue, leading to congestive heart failure—a condition that is often difficult to treat with drugs. "Twenty percent of Americans over 50 have high galectin-3," says Pieter Muntendam, MD, CEO of BG Medicine in Waltham, MA. "A 2009 study showed that a diet high in fruits and vegetables decreased the risk of heart failure by 37%."
Try: Pectin is contained in the pulp and pith. You'll get more of it in juice with pulp. Or better yet, eat your oranges.
Kale
Rx Effect: Prevents atherosclerosis
The Evidence: Your mom was right: You need to consume your dark leafy greens. "Kale has everything you would want in a superfood," says Joel Fuhrman, MD, the author of the bestseller Eat to Live, who uses diet and exercise to help patients reverse their cardiovascular disease. For starters, kale boasts a bumper crop of heart-healthy antioxidants, omega-3 fatty acids, fiber, folate, potassium, and vitamin E. It's also rich in lutein, which correlated in the Los Angeles Atherosclerosis Study with protection against early atherosclerosis. Kale even contains an unusual compound, glucoraphanin, that activates a special protective protein called Nrf2. "It creates a sort of Teflon coating in your arteries to keep plaque from adhering," says Dr. Fuhrman.
Try: For a snack, try Brad's Raw Leafy Kale—actual kale that is dehydrated, then coated with ground cashews, sunflower seeds, lemon juice, and garlic.
Garlic
Rx Effect: Reduces blood pressure and plaque
The Evidence: Research suggests that, much like the ACE inhibitor drugs that fight high blood pressure, garlic ratchets down an enzyme called angiotensin, which constricts blood vessels. Though the effect is modest compared with medications, garlic seems to have a significant impact on the buildup of plaque. In three randomized trials, Matthew Budoff, MD, professor of medicine at UCLA, found that plaque progression slowed by more than 50% in people taking garlic extract, compared with the non–vampire slayers—"and the nongarlic group was on standard drugs," he says.
Try: The trials used 250 mg tablets of Kyolic aged garlic extract to standardize the dose. "But it's always better to eat the real food," says Gayl Canfield, PhD, RD, director of nutrition at Pritikin Longevity Center in Miami.
Sardines
Rx Effect: Lower triglycerides, raise HDL
The Evidence: The omega-3 fatty acids in cold-water fish are crucial for heart health, and sardines have among the highest levels. These "good fats" lower harmful triglycerides, raise protective HDL, reduce potentially fatal heart arrhythmias, and tamp down inflammation. It's inflammation that ultimately destabilizes plaque, causing it to rupture and produce a heart-attack-inducing clot. Though you can get omega-3s from plant sources such as flaxseed, the "long chain" omega-3s in fish are far more powerful. A large Danish study last year in the American Journal of Clinical Nutrition found a 38% reduction in ischemic heart disease among women who consumed the most.
Try: Wild Planet sells wild sardines in extra virgin olive oil with lemon.
Lentils
Rx Effect: Reduce blood pressure
The Evidence: One international study followed 12,763 people in the United States, Japan, and six European countries for 25 years. When the results were tallied, legumes—such as lentils—were associated with an 82% reduction in the risk of death from heart disease. The reasons include not only lean vegetable protein and fiber but also folate, magnesium, and potassium. George Mateljan, the author of The World's Healthiest Foods, calls magnesium "nature's own calcium channel blocker"—a type of drug that fights hypertension. And by counterbalancing salt, potassium is crucial for keeping blood pressure under control.
Try: TruRoots's new Sprouted Lentil Trio cooks in just 5 to 7 minutes.
Almonds
Rx Effect: Reduce LDL and fatal arrhythmias
The Evidence: "You don't have to be miserable to bring your cholesterol down," says David Jenkins, MD, PhD, professor of medicine and nutritional sciences at the University of Toronto. The plant sterols in almonds reduce the absorption of cholesterol from the diet, while the unsaturated oils encourage the liver to make less LDL and more "good" HDL. When Dr. Jenkins gave patients a vegetarian diet including almonds (along with other cholesterol-lowering foods, such as lentils, eggplant, and soy) for a month, he found LDL reductions of 28.6%—comparable to those on 20 mg of lovastatin (Mevacor). Just 22 almonds a day will do. Another study found major declines in fatal arrhythmias with 2 servings of nuts a week.
Try: Don't limit yourself to almonds. Walnuts, pistachios, and peanuts are also great.
Pomegranates
Rx Effect: Reduce atherosclerosis
The Evidence: Bringing down LDL is important, but so is preventing the oxidation of that cholesterol. When LDL is oxidized, it tends to get stuck in arterial walls, initiating the formation of plaque. But Michael Aviram, DSc, professor of biochemistry at the Technion-Israel Institute of Technology in Haifa, found that pomegranate juice, with its unique antioxidants, not only blocked the progression of plaque, but actually reversed some of the buildup when patients drank 8 ounces a day for a year. How does it do this? In later studies, Dr. Aviram learned that pomegranates activate an enzyme that breaks down oxidized cholesterol.
Try: For those who love pomegranates but not the messy job of cracking them open, Pom Wonderful now does the work for you. Look for the fruit-covered seeds (or "arils") in clear plastic cups under the brand name Pom Poms.
Can turmeric prevent heart disease?
In the first study, researchers assigned 32 women to either take a curcumin supplement, engage in moderate aerobic exercise training, or undergo no intervention at all. The researchers measured participants' vascular endothelial function - the responsiveness of the layer of cells that line the blood vessels, a key indicator of overall cardiovascular health - both at the beginning and end of the study. They found that while there was no improvement in the control group, endothelial function significantly increased in both the exercise and curcumin groups. Most surprisingly, the improvement in the two experimental groups was identical.
The second study examined curcumin's effects on the responsiveness of arteries to changes in blood pressure ("arterial compliance"), another key measure of cardiovascular health. In this study, 32 women were randomly assigned to receive either a curcumin supplement or a placebo pill, or to undergo an exercise routine plus either a curcumin or placebo pill. The researchers found no significant improvement in the control group, significant (and equivalent) improvements in both the exercise-only and curcumin-only groups, and the greatest improvement among participants who exercised and also took the supplements.
In the final study, researchers examined the effects of exercise and curcumin on the rate of age-related degeneration of the heart's left ventricle. 45 participants were randomly assigned into one of the same four groups used in the second study.
The researchers once again found that both exercise and curcumin produced significant increases in heart health. In this study, however, curcumin alone did not appear to provide any benefit. Specifically, brachial systolic blood pressure (SBP) decreased among participants who exercised, whether or not they took curcumin. In addition, heart-rate-corrected aortic augmentation index (AIx) and aortic SBP both decreased significantly only among participants who both exercised and took curcumin.
"Regular ingestion of curcumin could be a preventive measure against cardiovascular disease in postmenopausal women," the authors of the first study wrote. "Furthermore, our results suggest that curcumin may be a potential alternative ... for patients who are unable to exercise."
Curcumin is best absorbed from turmeric root, rather than from supplements.
Walnuts contain the amino acid l-arginine, which offers multiple vascular benefits to people with heart disease, or those who have increased risk for heart disease due to multiple cardiac risk factors.
If you struggle with herpes, you may want to avoid or limit walnuts, as high levels of arginine can deplete the amino acid lysine, which can trigger herpes recurrences.
Walnuts also contain the plant-based omega-3 fat alpha-linolenic acid (ALA), which is anti-inflammatory and may prevent the formation of pathological blood clots. Research shows that people who eat a diet high in ALA are less likely to have a fatal heart attack and have a nearly 50 percent lower risk of sudden cardiac death.2
Eating just four walnuts a day has been shown to significantly raise blood levels of heart-healthy ALA,3 and walnut consumption supports healthful cholesterol levels.
Separate research showed that eating just one ounce of walnuts a day may decrease cardiovascular risk,4 and among those at high cardiovascular risk, increased frequency of nut consumption significantly lowers the risk of death.5
Statistics: Posted by nextlevel — Wed Sep 17, 2014 8:59 am